The young stars of 'Riverdale' played the parents on the '90s flashback episode — here's how they compare

Warning: Spoilers ahead for season three, episode four of "Riverdale" titled, "The Midnight Club."

"Riverdale's" flashback episode did not disappoint.

Alice sat down with Betty to tell her a story from the parents' junior year of high school. To depict young versions of the adults, the young cast of The CW's "Riverdale" transformed into younger versions of the adults. The actors did a tremendous job portraying teen versions of the adults.

Here's how the teens stacked up to young versions of the adult actors.

1/

Lily Reinhart was convincing as a young Mädchen Amick.

Lily Reinhart as a young Alice and Mädchen Amick on "Twin Peaks."
The CW and ABC

Reinhart, who normally plays Betty, played Alice when she was still in the Southside Serpents.

2/

KJ Apa nailed his transformation into young Luke Perry.

KJ Apa as young Fred and Luke Perry on "Beverly Hills, 90210."
The CW and Worldvision Enterprises

Apa, who plays Archie, played Fred when he was a musician and baseball star.

3/

Michael Consuelos made his TV debut as a young version of his real father Mark Consuelos.